Drier



Jan. 13, 1942. I E. F. DALEY DRIER Filed Aug. 5, 1940 25m]? wgwrg Patented Jan. 13, 1942 DRIER Edwin F. Daley, Brooklyn, N. Y., assignor to Frederick S. Stout, CamdelnN. J.

l Application August a, 1940, Serial No. 350,495 8 Claims, (o1. 34414) This invention relates-to drying mechanisms and, more particularly, to an apparatus fordryin'g materials such as hides or similar materials which have: been pretreated with moist conditioning 'substances-and-which ,must, in order to be properly worked, be dried to an approximately accurate moisture content.

' An important object of the invention is to pro.- vide an apparatus for this purpose which, within reasonable limits, will not be subject to changes in atmospheric conditions such as changes in humidity or temperature.

Another object of the invention is to provide an apparatus of this character which may be very'readily regulated and in which adjustments 1.

areprovided enabling compensation'for seasonalchanges.

-:Another object of the invention is to provide an apparatus of this character which is particularly adapted for use in drying hides, and in which the 29.

desired dehydration is obtained without excessive shrinkage.

These and other-objects I attain by the construction shown in the accompanying drawing wherein, for the purpose of illustration, I have 2?, a

' has adjustably mounted thereon, as at 25, a conshown a preferred embodiment of my invention and wherein:

i 'Fig. 1 is a semi-diagrammatic sectional view through a drying apparatus constructed in. ac-

cordance with my invention; and 3Q 28 is preferably, likewise, made adjustable, as

Fig. 2 is a detail elevational view of the adjusting mechanism. l v

Referring now more particularly to the drawing, the numeral generally designates an elongated chamber, through which passes a reticulate {in conveyer ll, direction of movement of the conveyer being indicated by the arrow A. Adjacent the discharge endof the chamber HJ-is arranged aninlet 12 receiving the discharge from a blower l3.which is passed over a suitable heating coil 14. all

' the air after the heat treatment is sufficiently Such coil may, for example, be a steam coil, andhas associated therewith a regulating. valve 15 which is controlled through a thermostat l6 disposed within the chamber and adjacent the upper surface of the conveyer at the discharge end 45 thereof. As diagrammatically illustrated, this thermostat is of that type controlling delivery of a supply of operating air from a source H to the control valve I5 for regulating the supply of.

steam or other heating fluid to the coil 14. 6Q

cessive 'as, for example, due to changes in sea- At the opposite end of chamber I0 is an outlet 18, this outlet being equipped with an exhaust blower l9. It will be obvious that were the chamber Ill simply provided with heated air introduced bythe blower l3 and educed by blower l9, there 5 would be a decided stratification within the chamber and; in accordance with my invention, this Stratification is advantageously employed'to insure properdrying of the articles moving through the chamber upon the conveyer l l This I accomplish by arranging within the chamber,

between the inlet andoutlet thereof, a bafile, or baflles,,which are adjustably regulated by the humidity. of the hides or other materials conveyed; As at present shown, two such bafiles are illustrated; one of the baffles, indicated at 20, being located. between the inlet and outlet and the second baflie 21 being located adjacentthe outlet l8 and 'coacting with a fixed bafile I8a depending from the inner edge of outlet IS. A humidostat 22 is arranged adjacent the upper surface of th'egconveyer at a point beyond the baflle and,- preferably, where two bafiles are employed as shown, between-these bafiles. Baffles- 20 and, 21 are pivoted so that they may be adjustablyregulated, and the regulation thereof is preferably automatically effected by humido stat 22. 'As at present shown, humidostat 22 controls the circuit of a reversible motor 23 by means of which an arm 24 is rotated. This arm nection through which flexible, elements 26, 21 may be operatively connectedto arms 28 attached to the respective baflles '20 and 2|. The connection of flexible elements 26, 21 to the arms indicated at 29. a

It will be obvious that by shifting bafiles 2i! 7 and/or 2| the highly heated air which would downwardly'and thuscaused to pass directly over the surface ofthe hides and through the reticulate conveyer to engage against both the upper and lower surfaces thereof at a greatly increased speed.. If the humidity content of humidity thereof will, likewise, be taken care of by thermostat l5 and humidostat 22 and, accordingly, a very uniform product may be obtained. In event the changes necessary are exson, as between summer and winter, further adjustment to'insure proper conditioning of the material. may be obtained, both at the control 5 arm 24 and in the arms ZBponnected to baffles 20 and 21. It will be obvious that the temperature of the air adjacent the inlet [2 will be affected by the moisture content of the hides approaching this inlet end and with a reduction of temperature thermostat [6 will act to increase the temperature of the incoming air. By reason of these controls, a very accurate control of the moisture content of the articles under treatment may be obtained.

Since the construction illustrated is, obviously, capable of considerable modification without in any manner departing from the spirit of the invention, I do not wish to be understood as limiting myself thereto except as hereinafter claimed.

I claim:

1. In a drier, an elongated casing, an endless support having a run moving through the casing from end to end thereof, an inlet for the casing adjacent that end thereof at which said run leaves the casing, an outlet for the casing at the opposite end thereof, an adjustable baflle arranged between said inlet and outlet and adapted to deflect air passing from the inlet to the outlet downwardly upon material arranged on said run to an extent controlled by the position of said baffle, means including a humidostat arranged in the casing for positioning said baffle, heating means for air introduced through said inlet and a thermostat arranged between said bafiie and the inlet and adjacent the upper surface of said run for controlling the temperature of the incoming air.

2. In a drier, an elongated casing, an endless support having a run moving through the casing from end to end thereof, an inlet for the casing adjacent that end thereof at which said run leaves the casing, an outlet for the casing at the opposite end thereof, an adjustable baffle arranged between said inlet and outlet and adapted to deflect air passing from the inlet to the outlet downwardly upon material arranged on said run to an extent controlled by the position of said baffie, heating means for air introduced through said inlet, a thermostat arranged between said baffle and the inlet and adjacent the upper surface of said run for, controlling the temperature of the incoming air, and a humidostat arranged between said baffle and the outlet and controlling the position of said baflle.

3. In a drier, an elongated casing, an endless support having a run moving through the casing from end to end thereof, an inlet for the casing adjacent that end thereof at which said run leaves the casing, an outlet for the casing at the opposite end thereof, an adjustable baffle arranged between said inlet and outlet and adapted to deflect air passing from the inlet to the outlet downwardly upon material arranged on said run to an extent controlled by the position of said baffle, means including a humidostat arranged in the casing for positioning said baflle and controllable heating means for heating the air introduced through said inlet.

4. In a drier, an elongated casing, an endless support having a run moving through the casing from end to end thereof, an inlet for the casing adjacent that end thereof at which said run leaves the casing, an outlet for the casing at the opposite end thereof, an adjustable baffle arranged between said inlet and outlet and adapted to deflect air passing from the inlet to the outlet downwardly upon material arranged on said run to an extent controlled by the position of said bafile, controllable heating means for heating the 75 air introduced through said inlet, and a humidostat arranged between said baffle and the outlet and controlling the position of said baffle.

5. In a drier, an elongated casing, an endless support having a run moving through the bottom of the casing from end to end thereof, an inlet for the casing adjacent that end thereof at which said run leaves the casing, an outlet for the casing at the opposite end thereof, an adjustable baffle arranged upon a transverse pivot adjacent the top of the casing and between said inlet and outlet and adapted to deflect air passing from the inlet to the outlet downwardly upon material arranged on said run to an extent controlled by the position of said baffle, means including a humidostat arranged in the casing for positioning said baffle, heating means for air introduced through said inlet and a thermostat arranged between said baffle and the inlet and adjacent the upper surface of said run for controlling the temperature of the incoming air.

6. In a drier, an elongated casing, an endless support having a run moving through the bot tom of the casing from end to end thereof, an

inlet for the casing adjacent that end thereof 1 at which said run leaves the casing, an outlet for the casing at the opposite end thereof, an adjustable baffie arranged upon a transverse pivot adjacent the top of the casing and between said inlet and outlet and adapted to deflect air passing from the inlet to the outlet downwardly upon material arranged on said run to an extent controlled by the position of said baffle, heating means for air introduced through said inlet, a thermostat arranged between said baflle and the inlet and adjacent the upper surface of said run for controlling the temperature of the incoming air, and a humidostat arranged adjacent said run between said baflle and the outlet and controlling the position of said baffle.

7. In a drier, an elongated casing, an endless support having a run moving through the casing from end to end thereof, an inlet for the casing adjacent that end thereof at which said run leaves the casing, an outlet for the casing at the opposite end thereof, an adjustable bafile arranged between said inlet and outlet and adapted to deflect air passing from the inlet to the outlet downwardly upon material arranged on said run to an extent controlled by the position of said baffle, controllable heating means for heating the air introduced through said inlet, means to adjust said baffie including a reversible motor and a humidostat arranged between the baffle and said outletand controlling the position of the baffle.

8. In a drier, an elongated casing, an endless support having a run moving through the casing from end to end thereof, an inlet for the casing adjacent that end thereof at which said run leaves the casing, an outlet for the casing at the opposite end thereof, an adjustable baflle arranged between said inlet and outlet and adapted to deflect air passing from the inlet to the outlet downwardly upon material arranged on said run to an extent controlled by the position of said baffle, controllable heating means for heating the air introduced through said inlet, a shaft upon which said baffle is mounted, a second shaft, means for reversely rotating said second shaft, 2. humidostat arranged between said bafile and said outlet and controlling the position of said second shaft and an adjustable connection between the first and second shafts.

EDWIN F. DALEY. 

